Received: by alpheratz.cpm.aca.mmu.ac.uk id OAA10262 (8.6.9/5.3[ref pg@gmsl.co.uk] for cpm.aca.mmu.ac.uk from fmb-bounces@mmu.ac.uk); Tue, 28 Aug 2001 14:54:31 +0100 Message-ID: <3B8BA216.42CA25F@bioinf.man.ac.uk> Date: Tue, 28 Aug 2001 14:52:22 +0100 From: Chris Taylor <Christopher.Taylor@man.ac.uk> Organization: University of Manchester X-Mailer: Mozilla 4.77 [en] (Windows NT 5.0; U) X-Accept-Language: en To: memetics@mmu.ac.uk Subject: Clincher? Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: fmb-bounces@mmu.ac.uk Precedence: bulk Reply-To: memetics@mmu.ac.uk
How do species go extinct by inbreeding if MR works?
Some species are outcompeted simply, but some dwindle (cheetahs are so
genetically homogenous due to population size reduction over the years
that skin grafts between unrelated animals more or less always take, for
example) and as they dwindle, genetic drift moves them away from the
optimal configuration for the species (fixation of deleterious alleles).
Genetic drift explains this perfectly, with no bits left over. How about
MR? And why does the MR 'go wrong' for them in the first place (again
the geneticist's explanation holds up with no visible strain here).
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Chris Taylor (chris@bioinf.man.ac.uk)
http://bioinf.man.ac.uk/ »people»chris
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